This
OS has TOR wired though it, its the most secure OS ive seen so far,
they continue to update it (March 5th 2012 is the newest
update as of this post) And make it better. It is possible that it
has some bugs, but it should be nothing to serious, and ive
personally had no problems with it.

Just download this, and
burn it to a DVD-RW and boot it up! Its very nice, and even has an
ability to look like Windows, so nothing you do looks suspicious :D
(Go to System, Preferences, Appearance)